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flash.h

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00001 /**
00002  * \file
00003  * Functions for reading and writing MSP430 flash ROM.
00004  * \author Adam Dunkels <adam@sics.se> 
00005  */
00006 
00007 /* Copyright (c) 2004 Swedish Institute of Computer Science.
00008  * All rights reserved.
00009  *
00010  * Redistribution and use in source and binary forms, with or without
00011  * modification, are permitted provided that the following conditions
00012  * are met:
00013  *
00014  * 1. Redistributions of source code must retain the above copyright notice,
00015  *    this list of conditions and the following disclaimer.
00016  * 2. Redistributions in binary form must reproduce the above copyright notice,
00017  *    this list of conditions and the following disclaimer in the documentation
00018  *    and/or other materials provided with the distribution.
00019  * 3. The name of the author may not be used to endorse or promote products
00020  *    derived from this software without specific prior written permission.
00021  *
00022  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
00023  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
00024  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00025  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
00026  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00027  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
00028  * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
00029  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
00030  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
00031  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
00032  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00033  *
00034  * $Id: flash.h,v 1.1 2006/06/17 22:41:21 adamdunkels Exp $
00035  *
00036  * Author: Adam Dunkels <adam@sics.se>
00037  *
00038  */
00039 
00040 #ifndef __FLASH_H__
00041 #define __FLASH_H__
00042 
00043 /**
00044  * Setup function to be called before any of the flash programming functions.
00045  *
00046  */
00047 void flash_setup(void);
00048 
00049 /**
00050  * Function that is to be called after flashing is done.
00051  */
00052 void flash_done(void);
00053 
00054 /**
00055  * Write a 16-bit word to flash ROM.
00056  *
00057  * This function writes a 16-bit word to flash ROM. The function
00058  * flash_setup() must have been called first.
00059  *
00060  * \param addr A pointer to the address in flash ROM which is to be
00061  * written.
00062  *
00063  * \param word The 16-bit word that is to be written.
00064  */
00065 void flash_write(unsigned short *addr, unsigned short word);
00066 
00067 /**
00068  * Clear a 16-bit word in flash ROM.
00069  *
00070  * This function clears a 16-bit word in flash ROM. The function
00071  * flash_setup() must have been called first. 
00072  *
00073  * \param addr A pointer to the address in flash ROM which is to be
00074  * cleared.
00075  */
00076 void flash_clear(unsigned short *addr);
00077 
00078 #endif /* __FLASH_H__ */